Tube cross-reference
14L7 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 14L7 voltage - triode (with diode, heptode or hexode). Compare core specifications and verify every restriction before using a replacement.
Exact variations of 14L7
These designations belong to the same electrical variation group. Their names may differ because of international standards, manufacturing tolerances, or materials, but they are recorded as electrically equivalent—not merely substitutes.
UBC41 Voltage - Triode (with diode, heptode or hexode)
- Base
- Not recorded
- Socket
- B8A
- Base pins
- 8
- Sections
- 3
- Heater voltage
- 14 V
- Heater current
- 0.1 A
Replacement tubes for 14L7
The following tubes are recorded as possible replacements for 14L7. This direction does not establish that 14L7 can replace them.
Voltage - Triode (with diode, heptode or hexode)
The database records 10LD3 as a possible replacement for14L7.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage - Triode (with diode, heptode or hexode) | Voltage - Triode (with diode, heptode or hexode) |
| Construction | Diode-Diode-Triode | Diode-Diode-Triode |
| Base | LOCTAL | Not recorded |
| Socket | B8G | Not recorded |
| Base pins | 8 | Not recorded |
| Sections | 3 | 3 |
| Heater voltage | 14 V | 14 V |
| Heater current | 0.1 A | 0.1 A |
Voltage - Triode (with diode, heptode or hexode)
The database records UBC41 as a possible replacement for14L7.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage - Triode (with diode, heptode or hexode) | Voltage - Triode (with diode, heptode or hexode) |
| Construction | Diode-Diode-Triode | Diode-Diode-Triode |
| Base | LOCTAL | Not recorded |
| Socket | B8G | B8A |
| Base pins | 8 | 8 |
| Sections | 3 | 3 |
| Heater voltage | 14 V | 14 V |
| Heater current | 0.1 A | 0.1 A |
Where 14L7 can be used as the replacement
In these recorded relationships, 14L7 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 14L7.
Voltage - Triode (with diode, heptode or hexode)
The database records 14L7 as a possible replacement for10LD3.
No special restrictions are recorded for this substitution.
| Specification | 14L7 replacement | Original tube |
|---|---|---|
| Tube type | Voltage - Triode (with diode, heptode or hexode) | Voltage - Triode (with diode, heptode or hexode) |
| Construction | Diode-Diode-Triode | Diode-Diode-Triode |
| Base | LOCTAL | Not recorded |
| Socket | B8G | Not recorded |
| Base pins | 8 | Not recorded |
| Sections | 3 | 3 |
| Heater voltage | 14 V | 14 V |
| Heater current | 0.1 A | 0.1 A |
Voltage - Triode (with diode, heptode or hexode)
The database records 14L7 as a possible replacement forUBC41.
No special restrictions are recorded for this substitution.
| Specification | 14L7 replacement | Original tube |
|---|---|---|
| Tube type | Voltage - Triode (with diode, heptode or hexode) | Voltage - Triode (with diode, heptode or hexode) |
| Construction | Diode-Diode-Triode | Diode-Diode-Triode |
| Base | LOCTAL | Not recorded |
| Socket | B8G | B8A |
| Base pins | 8 | 8 |
| Sections | 3 | 3 |
| Heater voltage | 14 V | 14 V |
| Heater current | 0.1 A | 0.1 A |
Verify before substituting
Matching a base or heater voltage is not enough to prove that two tubes are interchangeable. Check pin connections, heater current, maximum ratings, bias requirements, warm-up behavior, and the equipment manufacturer’s service documentation before making a substitution.
View the complete 14L7 specifications →